WorksheetsPunnett Squares: Diagrams
Total questions: 21
Worksheet time: 42mins
What genotype would go in box 1?
Remember: Genotype is the combination of letters that represent the gene alleles inside the cells. Each cell will have two letters--one allele from each parent.
BB
Bb
bb
What genotype would go in box 2?
Remember: Genotype is the combination of letters that represent the gene alleles inside the cells. Each cell will have two letters--one allele from each parent.
BB
Bb
bb
What genotype would go in box 3?
Remember: Genotype is the combination of letters that represent the gene alleles inside the cells. Each cell will have two letters--one allele from each parent.
BB
Bb
bb
What genotype would go in box 4?
Remember: Genotype is the combination of letters that represent the gene alleles inside the cells. Each cell will have two letters--one allele from each parent.
BB
Bb
bb
What is the allele combination (genotype) for square 1?
Dd
DD
dd
D
What belongs in the last box?
RR
Rr
rr
ff
Fill in the Yellow Box
AA
Aa
aa
Fill in the Yellow Box
Bb
BB
bb
What belongs in the missing square?
tt
Tt
Bb
TT
Which shows the correct genotypes for this cross?
B=blue flowers b=white flowers
If this tree makes four plants, how many will probably have blue flowers?
0%
25%
50%
75%
R = red leaves
r = green leaves
If this plant makes four plants, how many will probably have red leaves?
1
2
3
4
B = blue feathers
b = black feathers
What is the genotype for the black chickens?
BB
Bb
bB
bb
A = yellow skin
a = green skin
Which genotypes are yellow skinned peas?
a
Aa
AA
AA and Aa
A = yellow skin
a = green skin
Which is the dominant trait?
yellow skinned peas
green skinned peas
They share dominance so they mix
B = pink flower
b = white flower
Which trait is dominant?
pink flower
white flower
They share dominance so they mix
B = brown fur
W = white fur
Which trait is dominant?
Brown fur
white fur
They share dominance so they mix
W= white fur
B= black fur
Which fur is dominant?
white fur
black fur
They share dominance so they mix
BONUS: What must the genotype of the missing parent be?
Remember, the alleles of the parents label the columns and rows of the box, and each child genotype will match the parent of its row and its column.
BB
Bb
bb
Tt
BONUS:
E = brown eyes
e = blue eyes
What color eyes do the parents have?
one brown, one blue
both blue
both brown
there's no way to tell based on this information
